The light in the cargo area won't turn off, not even when the engine is off and the key has been removed from the ignition. How do I override this? This is going to drain my battery if I leave it on all night.

Don't worry about the light not going off...after 35 minutes being on it will go out automatically. I tested the time during a visit to the dealer, they didn't know, so I left the trunk lid open and we tested how long it would take for the cargo light to go off.